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# C2 maths Watch

1. Hi, I'm just generally struggling with intergration and differentiation in the exam questions.
im doing OCR MEI and I understand it in lessons and in my text book, but when I try a past paper I'm just really doing bad.. I can't buy a revision guide, but any help?
cheers
2. (Original post by afcnew14)
Hi, I'm just generally struggling with intergration and differentiation in the exam questions.
im doing OCR MEI and I understand it in lessons and in my text book, but when I try a past paper I'm just really doing bad.. I can't buy a revision guide, but any help?
cheers
http://www.examsolutions.net/maths-r.../C2/module.php

Use this Goes through every topic and past papers.
3. Hi, I need some help with Trigonometric ratios of acute angles.. actually the whole chapter itself (Graphs of trigonometric functions) For example I don't understand this particular question
write each of the following as a trigonometric ratio of an acute angle: a) cos 237 b) sin 312 c) tan
190 d) sin 2.3 radians e) cos (-pie/15)

Also if anybody knows where I could find good C2 notes online, or video tutorials
Thanks
4. I hate C2
5. (Original post by raspberry26)
Hi, I need some help with Trigonometric ratios of acute angles.. actually the whole chapter itself (Graphs of trigonometric functions) For example I don't understand this particular question
write each of the following as a trigonometric ratio of an acute angle: a) cos 237 b) sin 312 c) tan
190 d) sin 2.3 radians e) cos (-pie/15)

Also if anybody knows where I could find good C2 notes online, or video tutorials
Thanks
6. Thanks
7. (Original post by Blueray2)
http://www.examsolutions.net/maths-r.../C2/module.php

Use this Goes through every topic and past papers.
Thats edexcel? I'm doing OCR MEI, but thank you anyway for posting the link ill look through

[EDIT] actually I just realised there is an MEI section on the website! So really helpful thanks loads!
8. (Original post by raspberry26)
Hi, I need some help with Trigonometric ratios of acute angles.. actually the whole chapter itself (Graphs of trigonometric functions) For example I don't understand this particular question
write each of the following as a trigonometric ratio of an acute angle: a) cos 237 b) sin 312 c) tan
190 d) sin 2.3 radians e) cos (-pie/15)

Also if anybody knows where I could find good C2 notes online, or video tutorials
Thanks
For something like cos 237, do you know what the graph of cos x looks like and how it repeats? If you plot a point on the graph that corresponds to x=237 then you can draw a horizontal line through this point and find out where else it intersects the graph.

The other way (if you've covered this) is to think of cos giving you the x-coordinate of a point that moves round the unit circle (radius = 1), so you if you work out where 237 degrees puts you, you can relate this to the cosine of other angles.

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